Events at Physics
The X-ray source in black hole accretion disks is also referred to as a corona, although its observed properties, e.g., spectra, luminosity, temperature, and variability are remarkably different from those of stellar coronae.
In fact, the physical mechanisms controlling accretion disk coronae remain largely unknown.
The colloquium will show that radio and mm observations of active galaxies (AGN) could be key to understanding the X-ray coronae of super-massive black holes. These suggest that perhaps stellar and accretion-disk coronae have more in common than meets the eye (or the telescope).